Three layers of composite automobile inner decoratire fabric and its production technology
Technical field
The invention belongs to fabric technical field, more particularly to a kind of three layers of composite automobile inner decoratire fabric and its production technology.
Background technology
Warp knit automobile inner decoration facing is widely used in automotive trim, wherein requiring that higher position is column, door-plate and top
Canopy.The warp knit automobile fabric of ceiling portion be typically necessary elder generation and PUR sponge underlays it is compound after go lamination again or with being laminated
It is bottom plate combined.And PUR sponges with fabric complex method will be answered immediately with automobile fabric again after sponge surface scorification with flame
Close.
Flame compound tense sponge surface can be by scorification, and caused smog is more and toxic breakdown products, makes to remain in
Volatile organic content in complex increases, and it is very unfavorable that new cars are prevented with noxious odor.Typically in order to control taste, also
Need subsequently to carry out that processing is exhausted while flint dry, allow smell volatilization in atmosphere.Although this process can be with
The smell of sponge complex is reduced, but also increases cost, and has aggravated air pollution in process of production.It is considered that
It is the place for needing to improve.
Meanwhile flame compound tense also can burn pars in itself, for 3mm thickness sponges, the thickness of part is burned out
Probably there is 0.5-0.8mm, similar 2/10ths are wasted.Automobile using PUR sponges prices is still costly.
Flame is compound high to equipment requirement, and general domestic flame assembly machine performance is difficult to reach automobile fabric composite demand,
Also very high is required to the operational administrative of equipment, it is easy to quality problems occur.For example compound fastness uniformity is not fine, combustion
Carbon black easily pollutes composite finished product etc. caused by burning.Flame is compound be caused by the burning of the organic gas such as methane heat by sea
Fabric and sponge, are bonded together by continuous top layer melting using the bond properties for melting polyurethane.Its benefit is compound rear production
The feel of product is very soft, and compound rear product wash durability is relatively good.But flame sponge surface burning can produce it is poisonous
Gas, easily remain in joint product, it is necessary to which follow-up high-temperature hot-air is circulated to remove, have larger infringement to environment, be not
A kind of environmentally friendly combination process.Surface bonding performance is bad, it is necessary to which special flame complexing agent is to polyethers after the melting of polyether-type sponge
The composite surface of sponge is handled, to increase bond properties.Flame is compound to require high to equipment performance, and particularly nozzle is added
Work requires high, and quality problems easily occurs in home equipment.Gas burns and sponge top layer melt-combustion can produce pernicious gas dirt
Dye and nuisance residual.It is also possible to produce carbon black during burning, pollutes composite surface, cause quality problems.It is therefore necessary to study
More clean other more environmentally friendly coating combination process.
For existing sponge flame combination process, have a disadvantage that:
1:Big for environment pollution, volatile organic other and other nuisances residual is more.
2:In order to remove smell, it is necessary to degassing process is dried in extra training, air is also polluted.
3:Flame compound tense, flame meeting scaling loss fall the sponge of about 2-3mm thickness in itself, and this is also a kind of waste.
4:Flame is compound easily to produce the quality problems such as carbon black pollution.
5:High is required to burner noz(zle) and gas flow optimized, easily produces quality problems.The compound jail of common polyether sponge flame
Degree difference is, it is necessary to could be compound to sponge surface processing.Imported Precision flame equipment complex price is high.
Secondly, glue or factice is compound and common combination process, but because hazardous solvent is present, to environment and
Human toxicity is larger, and is difficult to remove.So it is also a kind of technique not environmentally, it is necessary to using more clear in automobile field of compounding
Clean coating combination process substitutes.
For dusting coating, in coating technology field also have powder point coating method and double-dot coating method etc. its
He is used for combination process at coating process.They are all to be substituted taking human as the point-like coating technology of design on whole composite surface uniformly
The technique of dusting coating, such benefit are that the utilization rate of hot-melt adhesive powder is higher, and resin added is few, good hand touch.Bonding more firmly may be used
Lean on.But the powder point coating technique in lining cloth technical field, base fabric will could be allowed by high temperature and hot pressing in powder engraved roll
Hot-melt adhesive powder is transferred in base fabric, the feel of base fabric can be caused to have a strong impact on, the electrostatic powder ball to drop once in a while may also cause
Pit phenomenon.Enough bonding intensities are formed, in general, glue point diameter also will be in 0.3-1mm or so, for outer after coating
The automobile fabric front for requiring high is seen, in 45 degree of oblique extensions, it is easy to the vestige that glue point convexes to form is found, as pit one
The appearance of sample.Therefore, automobile fabric field of compounding can not use substantially.
Therefore, used for sponge and automobile fabric, sponge and non-woven fabrics for PUR combination process, it is necessary to use
Coating new technology in addition to inspergation improves above-mentioned quality problems.
The content of the invention
Regarding the issue above, the present invention provides a kind of manufacturing cost is low, no pit and more environmentally friendly three layers it is multiple
Close automobile inner decoration facing.
Another object of the present invention is in view of the above-mentioned problems, manufacturing cost can be reduced and can avoid out by providing one kind
Existing pit, the production technology of more environmentally friendly three layers of composite automobile inner decoratire fabric.
To reach above-mentioned purpose, present invention employs following technical proposal:This three layers of composite automobile inner decoratire fabrics include sea
Continuous, water repellent automobile fabric and non-woven fabrics, the first double-dot coating and described water repellent automobile are provided with the one side of water repellent automobile fabric
Fabric is compounded in the one side of sponge by the first double-dot coating, and the second double-dot coating and described nothing are provided with the one side of non-woven fabrics
Spin the another side that cloth is compounded in sponge by the second double-dot coating.
In three layers of above-mentioned composite automobile inner decoratire fabric, the structure of the first described double-dot coating and the second double-dot coating
It is identical, including slurry point coating and the dusting coating being arranged on slurry point coating, described slurry point coating is polyacrylic acid fat liquor,
Described dusting coating is copolyamide hot melt adhesive or copolyesters hot melt adhesive.
To reach another above-mentioned purpose, present invention employs following technical proposal:This three layers of composite automobile inner decoratire faces
The production technology of material, this technique comprise the following steps:
A, gluing:It will determine that the water repellent automobile fabric after coat side is placed on the reel-off stand of double-dot coating machine and put on
Cloth, first pair on the first double-dot coating and water repellent automobile fabric coat side is processed in coat side by double-dot coating technique
The coating amount of point coating is 14-20 grams/m, i.e. obtained one side has cated water repellent automobile fabric;
Secondly, it will determine that the non-woven fabrics after coat side is placed on the reel-off stand of double-dot coating machine and puts on cloth, by double
Point coating process processes the coating amount of the second double-dot coating on the second double-dot coating and non-woven cloth coating face in coat side
For 14-20 grams/m, i.e. obtained one side has cated non-woven fabrics;
The first described double-dot coating and the structure of the second double-dot coating are identical and processed formed by following steps respectively:
A1, the 30-40 mesh calculating from hole density 150-200 holes/every square centimeter and aperture between 0.2-0.3 millimeters
The double-dot coating cylinder of machine design arrangement, and cylinder wall thickness is between 0.15-0.22 millimeters;
A2, slurry point coating is first carried out in coat side by cylinder, the raw material of the slurry point coating is polyacrylate breast
Liquid and the addition auxiliary adjustment agent in polyacrylic acid fat liquor;
A3, dusting coating processing is carried out on slurry point coating, the raw material of the dusting coating is copolyamide hot melt adhesive
Powder or copolyesters hot melt adhesive powder, then carry out pressure-vaccum powder, and in drying room heating make hot-melt adhesive powder fusing so as to slurry
Point coating bonds;
B, it is compound:The one side of sponge and the water repellent automobile fabric had into coating on roller blanket belt type heat-pressing compound machine
One side hot pressing be combined with each other, the another side of sponge and the non-woven fabrics then are had into cated one side hot pressing is compounded in one
Rise, i.e. obtained water repellent automobile fabric and three layers of composite automobile inner decoratire fabric finished product that sponge is compound, non-woven fabrics and sponge are compound.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, the slurry point coating
Mass ratio with dusting coating is 18-30%:70-82%.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, the hot-melt adhesive powder
Optical melting point be 110-125 DEG C;Melt index is 30-50 grams/10 minutes;Heat resistance is more than 90 DEG C after bonding.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step B, the roller blanket band
135-142 DEG C of the compound roll surface temperature of formula heat-pressing compound machine, 2-5 kilograms of pressure roller air pressure/every square centimeter, compounding machine speed 8-
15 ms/min.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, described water repellent vapour
Car fabric is grey warp knit water repellent automobile fabric, by the grey warp knit water repellent that 156 centimetres of door and specification are 145 grams/m
Automobile fabric is placed on the reel-off stand of double-dot coating machine after having judged coat side and puts on cloth, and the speed of double-dot coating machine is set in
22 ms/min, drying room temperature is warming up to 180-185 DEG C;From computer 180 holes/square centimeter that disorderly point arranges, wall thickness 0.18
Millimeter and the cylinder in 0.22 millimeter of aperture;From polyacrylate prime cement and according to the polypropylene of 3.5-4.0 grams/m of primary coat
The solid content regulation machine parameter of acid esters, is shifted and put being coated in grey warp knit water repellent automobile by polyacrylate prime cement by cylinder
In the coat side of fabric;Be 80-170 microns from the particle diameter of copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder,
Fusing point is 122 DEG C of optical method and melt index is 30 grams/10 minutes, appropriate copolyamide hot melt adhesive will be put into dusting groove
Powder and copolyamide hot melt adhesive powder is dispensed, according to the amount of 12-13 grams/m of finished product dusting coating amount adjust duster and
Pressure-vaccum powder equipment parameter, i.e. the cated grey warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics is terylene non-woven fabric, by the terylene non-woven fabric that 154 centimetres of door and specification are 50 grams/m
It is placed on after having judged coat side on the reel-off stand of double-dot coating machine and puts on cloth, the speed of double-dot coating machine is set in 22 ms/min
Clock, drying room temperature are warming up to 180-185 DEG C;From computer disorderly point arrangement 150 holes/square centimeter, 0.18 millimeter of wall thickness and
The cylinder that 0.24 millimeter of aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content adjusts machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric;
Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method 122
DEG C and melt index be 30 grams/10 minutes, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and by copolyamide
Hot melt adhesive powder dispenses, and adjusts duster according to 10-12 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 3.8mm thickness, starts roller blanket belt type
The one side for having cated grey warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will tool
Cated terylene non-woven fabric and the another side of PUR sponges are combined with each other.
The particle diameter of the first aggressiveness of polyacrylate is very small (being generally less than 0.2um) in the prime cement of polyacrylic acid fat liquor,
So plus the colloid diameter above prime cement after the dusting coating PUR of secondary coating can accomplish it is very small.So bottom is poly-
Acrylate particulate, which serves, bonds base fabric and upper strata PUR, in follow-up compound tense not re-melting, plays and prevents upper strata hot melt
Glue reverse osmosis and the PUR of promotion production the fusing diffusion on composite material yarn, are advantageous to increase substantially bonding strength
Effect.Comparatively, the resistance to heat decomposition temperature of crosslinking curing product after polyacrylate prime cement coating is compared with polyaminoester emulsion
Cross-linking products are higher, and anti-yellowing property is more excellent, and thermal decomposition product toxicity is smaller.Therefore, from polyacrylate prime cement.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, described water repellent vapour
Car fabric is warp knit water repellent automobile fabric, by the warp knit water repellent automobile fabric that 156 centimetres of door and specification are 180 grams/m
It is placed on after having judged coat side on the reel-off stand of double-dot coating machine and puts on cloth, the speed of double-dot coating machine is set in 20 ms/min
Clock, drying room temperature are warming up to 180-185 DEG C;From computer disorderly point arrangement 180 holes/square centimeter, 0.18 millimeter of wall thickness and
The cylinder that 0.22 millimeter of aperture;From polyacrylate prime cement and according to the polyacrylate of 4.0-4.5 grams/m of primary coat
Solid content adjusts machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coating of warp knit water repellent automobile fabric
On face;Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optics
122 DEG C of method and melt index are 30 grams/10 minutes, and appropriate copolyamide hot melt adhesive powder will be put into dusting groove and will be copolymerized
Amide-type hot-melt adhesive powder is dispensed, and duster and pressure-vaccum powder equipment are adjusted according to 14-15 grams/m of amount of finished product dusting coating amount
Parameter, i.e. the cated warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics is terylene non-woven fabric, by the terylene non-woven fabric that 154 centimetres of door and specification are 50 grams/m
It is placed on after having judged coat side on the reel-off stand of double-dot coating machine and puts on cloth, the speed of double-dot coating machine is set in 22 ms/min
Clock, drying room temperature are warming up to 180-185 DEG C;From computer disorderly point arrangement 150 holes/square centimeter, 0.18 millimeter of wall thickness and
The cylinder that 0.24 millimeter of aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content adjusts machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric;
Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method 122
DEG C and melt index be 30 grams/10 minutes, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and by copolyamide
Hot melt adhesive powder dispenses, and adjusts duster according to 10-12 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 2.0mm thickness, starts roller blanket belt type
The one side for having cated warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will have and apply
The terylene non-woven fabric and the another side of PUR sponges of layer are combined with each other.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, described water repellent vapour
Car fabric is warp knit water repellent automobile fabric, by the warp knit water repellent automobile fabric that 156 centimetres of door and specification are 160 grams/m
It is placed on after having judged coat side on the reel-off stand of double-dot coating machine and puts on cloth, the speed of double-dot coating machine is set in 22 ms/min
Clock, drying room temperature are warming up to 180-185 DEG C;From computer disorderly point arrangement 180 holes/square centimeter, 0.18 millimeter of wall thickness and
The cylinder that 0.22 millimeter of aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content adjusts machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coating of warp knit water repellent automobile fabric
On face;Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optics
122 DEG C of method and melt index are 30 grams/10 minutes, and appropriate copolyamide hot melt adhesive powder will be put into dusting groove and will be copolymerized
Amide-type hot-melt adhesive powder is dispensed, and duster and pressure-vaccum powder equipment are adjusted according to 12-13 grams/m of amount of finished product dusting coating amount
Parameter, i.e. the cated warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics is terylene non-woven fabric, by the terylene non-woven fabric that 154 centimetres of door and specification are 50 grams/m
It is placed on after having judged coat side on the reel-off stand of double-dot coating machine and puts on cloth, the speed of double-dot coating machine is set in 22 ms/min
Clock, drying room temperature are warming up to 180-185 DEG C;From computer disorderly point arrangement 150 holes/square centimeter, 0.18 millimeter of wall thickness and
The cylinder that 0.24 millimeter of aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content adjusts machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric;
Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method 122
DEG C and melt index be 30 grams/10 minutes, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and by copolyamide
Hot melt adhesive powder dispenses, and adjusts duster according to 11-13 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 3.0mm thickness, starts roller blanket belt type
The one side for having cated warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will have and apply
The terylene non-woven fabric and the another side of PUR sponges of layer are combined with each other.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, also wrapped between described step A and step B
Include step:C, examine, will simultaneously have cated warp knit automobile fabric and irradiated under ultraviolet light, then one side is had and applied
The non-woven fabrics of layer irradiates under ultraviolet light, and extremely micro fluorescer can send white light in the rubber powder of dusting coating, you can
To observe coating point-type and quality, clot has been sutured again if unqualified place can be cut out;Also wrapped after described step B
Include step:D, wind, 153 centimetres of door width > at winding.
In the production technology of three layers of above-mentioned composite automobile inner decoratire fabric, in above-mentioned step A, the auxiliary adjustment
Agent composition is to include:Thickener and ammoniacal liquor.Described polyacrylate emulsion solid content is 40%.
Compared with prior art, the advantages of the production technology and automobile inner decoration facing of this three layers of composite automobile inner decoratire fabrics
It is:
1st, it is more preferable with the traditional flame combination process effect of the double-dot coating technique replacement after improvement.It can save and be burned out
Sponge thickness, improve harmful exhaust emissions, reduce product in residual smell, save it is compound after high temperature bake and bank up with earth smell work
Sequence.
2nd, the double-dot coating after improvement, perching, compound three-steps process, the quality of composite finished product can more be ensured.Repeatedly
Classification carries out quality testing, is that quality control is more reliable.
3rd, the separation equipments such as ready-made adhesive lining coating apparatus and cloth inspecting machine and roller blanket belt type compounding machine can be utilized, slightly
The automobile fabric coating Compound Machining that can carry out expensive high quality requirement is brought up in micromodification.Save great amount of investment.
4th, conventional adhesive lining two point technique can not be directly applied to automobile fabric field of compounding and be answered, it is necessary to screen suitable automobile
The prime cement of fabric performance, rubber powder are closed, the technique such as cylinder specifications parameter and coating amount can just meet the requirement in the field.This is also vapour
The technique particularity of car fabric double-dot coating technique.
5th, final product quality has further been ensured, has added the flexibility of small lot production, reduce inventory value.
6th, the generation of pit is avoided, meanwhile, also improve peel strength and the quality of fabric, it is more environmentally-friendly and meet and work as
The environmental protection policy that preceding country advocates.
Brief description of the drawings
Fig. 1 is the structural representation of three layers of composite automobile inner decoratire fabric provided by the invention.
Fig. 2 is process flow diagram provided by the invention.
Fig. 3 is the structural representation that water repellent automobile fabric provided by the invention processes the first double-dot coating.
Fig. 4 is the view of water repellent automobile fabric provided by the invention and the face compound tense of sponge one.
Fig. 5 is the structural representation that non-woven fabrics provided by the invention processes the second double-dot coating.
Fig. 6 is the view of non-woven fabrics provided by the invention and sponge another side compound tense.
In figure, sponge 1, water repellent automobile fabric 2, the first double-dot coating 21, non-woven fabrics 3, the second double-dot coating 31.
Embodiment
It is the specific embodiment of invention and with reference to accompanying drawing below, technical scheme is further described, but
The present invention is not limited to these embodiments.
As shown in figure 1, this three layers of composite automobile inner decoratire fabrics include sponge 1, water repellent automobile fabric 2 and non-woven fabrics 3, refusing
The one side of water automobile fabric 2 is provided with the first double-dot coating 21 and described water repellent automobile fabric 2 is multiple by the first double-dot coating 21
The one side in sponge 1 is closed, the second double-dot coating 31 is provided with the one side of non-woven fabrics 3 and described non-woven fabrics 3 passes through the second two point
Coating 31 is compounded in the another side of sponge 1.Specifically, first double-dot coating 21 is identical with the structure of the second double-dot coating 31,
Including slurry point coating and the dusting coating being arranged on slurry point coating, described slurry point coating is polyacrylic acid fat liquor, described
Dusting coating be copolyamide hot melt adhesive or copolyesters hot melt adhesive.
As shown in figures 1 to 6, the production technology of this three layers of composite automobile inner decoratire fabrics comprises the following steps:
A, gluing:It will determine that the water repellent automobile fabric 2 after coat side is placed on the reel-off stand of double-dot coating machine and put on
Cloth, on the first double-dot coating 21 and the coat side of water repellent automobile fabric 2 is processed in coat side by double-dot coating technique
The coating amount of one double-dot coating 21 is 14-20 grams/m, i.e. obtained one side has cated water repellent automobile fabric 2;
Secondly, it will determine that the non-woven fabrics after coat side 3 is placed on the reel-off stand of double-dot coating machine and puts on cloth, by double
Point coating process processes the painting of the second double-dot coating 31 in the second double-dot coating 31 and the coat side of non-woven fabrics 3 in coat side
Layer amount is 14-20 grams/m, i.e. obtained one side has cated non-woven fabrics 3;
The first described double-dot coating 21 is identical with the structure of the second double-dot coating 31 and processes shape by following steps respectively
Into:
A1, the 30-40 mesh calculating from hole density 150-200 holes/every square centimeter and aperture between 0.2-0.3 millimeters
The double-dot coating cylinder of machine design arrangement, and cylinder wall thickness is between 0.15-0.22 millimeters;This sampling point is small and fine and closely woven, coating amount
Big compared with adhesive lining technique, bonding strength is big and reliable, but compared with orthodox car fabric dusting combination process, dusting coating amount consumption
Amount is less and cost is lower.
A2, slurry point coating is first carried out in coat side by cylinder, the raw material of the slurry point coating is polyacrylate breast
Liquid and the addition auxiliary adjustment agent in polyacrylic acid fat liquor;The auxiliary adjustment agent composition is to include:Thickener and ammoniacal liquor.Thickening
Agent is to join carbonizer's acrylic thickener, trade mark PTF.Ammoniacal liquor:Adjust slurry pH value.Polyacrylate emulsion solid content
40%.
A3, dusting coating processing is carried out on slurry point coating, the raw material of the dusting coating is copolyamide hot melt adhesive
Powder or copolyesters hot melt adhesive powder, then carry out pressure-vaccum powder, and in drying room heating make hot-melt adhesive powder fusing so as to slurry
Point coating bonds;They can prevent xanthochromia and thermal decomposition for copolyamide hot melt adhesive powder or copolyesters hot melt adhesive powder, have
Have excellent endurance quality and the matching of good subsequent machining technology, can prevent following process strike-through, produce pit or
Person's peel strength declines.Secondly, substantial amounts of hot-melt adhesive powder dosage is saved compared to traditional dusting combination process.
B, it is compound:The one side of sponge 1 and the water repellent automobile fabric are had on roller blanket belt type heat-pressing compound machine and applied
The one side hot pressing of layer is combined with each other, and it is compound that the another side of sponge 1 and the non-woven fabrics then are had into cated one side hot pressing
Together, i.e. be made water repellent automobile fabric and sponge is compound, non-woven fabrics and sponge are compound three layers of composite automobile inner decoratire fabric into
Product.Carry carry work feed guipure before the composite roller of roller blanket belt type heat-pressing compound machine, band air intake device below guipure, inhale
Air quantity with variable frequency adjustment, so can more preferably adjust the elongation percentage of finished product.
Also include step between described step A and step B:C, examine, will simultaneously have cated warp knit automobile face
Material irradiates under ultraviolet light, then will simultaneously have cated non-woven fabrics and is irradiated under ultraviolet light, dusting coating
Extremely micro fluorescer can send white light in rubber powder, you can to observe coating point-type and quality, if unqualified place can be with
Sanction goes to have sutured clot again, carries out mark and record.This verifies as multiple fractionation and carries out quality testing, quality control more may be used
Lean on, meanwhile, it can so ensure composite quality and reduce the mass loss of expensive automobile fabric.
Also include step after described step B:D, wind, 153 centimetres of door width > at winding.The observation platform before winding
Upper observation coating point-type, inspection door width and feel, and the total coating amount of sampling and testing, sample will also send testing chamber's inspection and vapour immediately
Physical index such as bonding peel strength, elongation percentage of car fabric etc..
Double-dot coating technique is that first coating materials point coating (can be the pulpous state that Thermoplastic hot melt's rubber powder is done on non-woven fabrics
The slurry of thing or thermosetting resin), hot-melt adhesive powder is then uniformly sprinkled, spot printing then will be starched by pressure-vaccum powder again
The unnecessary hot-melt adhesive powder of interlayer sops up, and only retains the hot-melt adhesive powder above point-like slurry point coating.Then by the nothing after double-dot coating
It is in point-like resin to spin cloth and will starch a coating and hot-melt adhesive powder drying crosslinking fusing through drying room, then compound with being pressurizeed by compound heating
Technique.The non-woven fabrics of double-dot coating technique before coating without passing through high temperature (unlike powder point coating first must add non-woven fabrics
Heat) and pressure (pressure is needed during powder point coating to shift hot-melt adhesive powder group), therefore feel is fine, prime cement typically compound tense without
Need to melt, it is only necessary to which a small amount of hot-melt adhesive powder provides for sufficiently high bonding strength.Moreover, by pressure-vaccum powder, even if in coating
The electrostatic rubber powder group that position occurs once in a while, can also easily be sucked away, and be not likely to occur big rubber powder and roll into a ball the pit matter to be formed
Amount problem.Such as pulp spot printing layer time point slurry uniformly, the form starched a little is uniform in size, slurry point coating point-type and coating uniformity control
It is easy to be more many than the control of the dusting uniformity, small, follow-up dusting not related with electrostatic and air flow is influenceed by environmental factor
Although the uniformity also requires, rubber powder spread after can on cloth cover roll and be bonded at again slurry point a surface, so coating amount only with
Slurry point uniformity, slurry dot density is relevant with slurry point surface area, and the rubber powder not being stuck can be blotted only by device for inhaling powdery substances.Therefore it is double
Point coating bonding effect is easier to control.And because being spot bonding, fiber and yarn between points are not heated
Rubber powder sticks, thus feel more soft fluffy, it is compound after product elongation percentage it is higher, follow-up curved surface be laminated or be molded when outside
Sight effect is more preferable, and percent defective is lower.Therefore, it is a kind of can be applied to the compound technical scheme of automobile fabric.
In above-mentioned step A, the mass ratio of the slurry point coating and dusting coating is 18-30%:70-82%.
In above-mentioned step A, the optical melting point of the hot-melt adhesive powder is 110-125 DEG C;Melt index is 30-50
Gram/10 minutes;Heat resistance is more than 90 DEG C after bonding.
In above-mentioned step B, 135-142 DEG C of the compound roll surface temperature of the roller blanket belt type heat-pressing compound machine, pressure
2-5 kilograms of roller air pressure/every square centimeter, 8-15 ms/min of compounding machine speed.
Compound tense,
The fabric head of water repellent automobile fabric 2 is held by air draft conveying device, and the fabric head of sponge 1 is inhaled by air draft conveying device
Firmly and by air draft conveying device the sponge 1 and water repellent automobile fabric 2 is set to penetrate roller blanket belt type heat-pressing compound machine, and water repellent
Automobile fabric 2 has hot pressing cylinder of the cated one side away from roller blanket belt type heat-pressing compound machine, that is to say, that water repellent automobile face
2 one sides away from the first double-dot coating of material contact with hot pressing cylinder.Most both hot pressing form hot pressing semi-finished product face together at last
Material.
The fabric head of hot pressing semi-finished product fabric is held by air draft conveying device, and the fabric head of non-woven fabrics 3 is conveyed by air draught to be filled
Put and hold and the hot pressing semi-finished product fabric and non-woven fabrics 3 is penetrated roller blanket belt type hot pressing by air draft conveying device compound
Machine, and non-woven fabrics 3 has hot pressing cylinder of the cated one side away from roller blanket belt type heat-pressing compound machine, that is to say, that non-woven fabrics
One side away from the second double-dot coating contacts with hot pressing cylinder.Most both hot pressing are together at last.
Air draft conveying device includes the internal transport platform for cavity, is respectively provided with conveying roller at the both ends of the transport platform, also
Including conveyer belt in a ring, said conveyer belt is enclosed on conveying roller and above-mentioned transport platform is located on the inside of conveyer belt, described defeated
Sending platform top has some adsorption holes run through, close at above-mentioned adsorption hole on the inside of the conveyer belt, in described transport platform
It is also associated with adsorbing the blower fan of transport platform inner chamber air;Described conveyer belt is nylon wire band.
Embodiment one
In above-mentioned step A, described water repellent automobile fabric 2 is grey warp knit water repellent automobile fabric, by 156 lis of door
The grey warp knit water repellent automobile fabric that rice and specification are 145 grams/m is placed on moving back for double-dot coating machine after having judged coat side
On volume frame and cloth is put on, the speed of double-dot coating machine is set in 22 ms/min, and drying room temperature is warming up to 180-185 DEG C;From meter
Calculation machine 180 holes/square centimeter, 0.18 millimeter of wall thickness and the cylinder in 0.22 millimeter of aperture that disorderly point arranges, i.e. cp180 cylinders;Choosing
Machine parameter is adjusted with polyacrylate prime cement and according to the solid content of the polyacrylate of 3.5-4.0 grams/m of primary coat, is led to
Cross cylinder polyacrylate prime cement is shifted and put and be coated in the coat side of grey warp knit water repellent automobile fabric, polyacrylate bottom
Polyacrylate of the slurry from 760 trades mark.Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is
80-170 microns, fusing point are 122 DEG C of optical method and melt index is 30 grams/10 minutes, will be put into appropriate copolymerization in dusting groove
Amide-type hot-melt adhesive powder and by copolyamide hot melt adhesive powder dispense, according to 12-13 grams/m of amount of finished product dusting coating amount
Adjust duster and pressure-vaccum powder equipment parameter, i.e. the cated grey warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics 3 is terylene non-woven fabric, by the terylene nonwoven that 154 centimetres of door and specification are 50 grams/m
Cloth is placed on the reel-off stand of double-dot coating machine after having judged coat side and puts on cloth, the speed of double-dot coating machine be set in 22 meters/
Minute, drying room temperature is warming up to 180-185 DEG C;From computer 150 holes/square centimeter that disorderly point arranges, 0.18 millimeter of wall thickness
With 0.24 millimeter of the cylinder in aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content regulation machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric
On;Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method
122 DEG C are 30 grams/10 minutes with melt index, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and will be copolymerized acyl
Amine hot-melt adhesive powder dispenses, and adjusts duster according to 10-12 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;The hot-melt adhesive powder chooses the copolyamide rubber powder of Hai Tianyang companies, the trade mark
6200。
Prepare to start double-dot coating machine after adjusting parameter.Whether clean observe coating cylinder working surface, slurry point turns
Whether shifting is uniformly complete, if problematic timely processing.Observation dusting whereabouts dusting is uniform, and whether pressure-vaccum powder is clean, and prime cement is clung
Rubber powder particle it is whether uniformly full, lose a little that either point-type is not full or coating is uneven or pressure-vaccum between points if having
The sordid situation of powder wants timely processing.Tension force before and after the tension force of machine sections position, particularly coating head is regulated, disengaging is dried
Room tension force, it is related to the elongation percentage and dimensional stability to heating in house of product after coating.
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 3.8mm thickness, starts roller blanket belt type
The one side for having cated grey warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will tool
Cated terylene non-woven fabric and the another side of PUR sponges are combined with each other.
Further, the raw material of the warp knit automobile fabric and warp knitting fabrics specification:
GB1:50D/36F FDY grey 1-0/1-2/2-3/2-1//;
GB2:50D/36F FDY grey 2-3/2-1/1-0/1-2//;
GB3:75D/36F DTY 1-0/2-3//.
Automobile inner decoration facing after compound needs to detect following index and and standard comparing:
Whether the sub- colour photometer test data of the positive face color electricity consumption of fabric is qualified;Whether peel strength value is up to standard, (in order to prevent
Sponge is pulled off, it is necessary to which the non-adhering face of sponge is sticked into the fracture strength of paper self-adhesive tape increase sponge in itself);Whether visible defect closes
Lattice;Whether finished product elongation percentage is qualified;Whether fabric front there is pit;Whether Oblique 45 Degree stretching sees pit;Square grammes per square metre is
It is no in indication range;Whether water repellent degree is up to standard;Smell checks whether qualified etc..
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, and and therefore not to repeat here, and different place
It is:
In above-mentioned step A, described water repellent automobile fabric 2 is warp knit water repellent automobile fabric, by 156 centimetres of door and
Specification is to be placed on after 180 grams/m of warp knit water repellent automobile fabric has judged coat side on the reel-off stand of double-dot coating machine simultaneously
Cloth is put on, the speed of double-dot coating machine is set in 20 ms/min, and drying room temperature is warming up to 180-185 DEG C;From computer unrest point
180 holes/square centimeter, 0.18 millimeter of wall thickness and the cylinder in 0.22 millimeter of aperture of arrangement;From polyacrylate prime cement and press
Machine parameter is adjusted according to the solid content of 4.0-4.5 grams/m of polyacrylate of primary coat, by cylinder by polyacrylate bottom
Slurry is shifted and put and is coated in the coat side of warp knit water repellent automobile fabric;From copolyamide hot melt adhesive powder and copolyamide class heat
The particle diameter of melting powder is 80-170 microns, fusing point is 122 DEG C of optical method and melt index is 30 grams/10 minutes, by dusting groove
It is put into appropriate copolyamide hot melt adhesive powder and dispenses copolyamide hot melt adhesive powder, according to finished product dusting coating amount 14-
15 grams/m of amount regulation duster and pressure-vaccum powder equipment parameter, i.e. the cated warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics 3 is terylene non-woven fabric, by the terylene nonwoven that 154 centimetres of door and specification are 50 grams/m
Cloth is placed on the reel-off stand of double-dot coating machine after having judged coat side and puts on cloth, the speed of double-dot coating machine be set in 22 meters/
Minute, drying room temperature is warming up to 180-185 DEG C;From computer 150 holes/square centimeter that disorderly point arranges, 0.18 millimeter of wall thickness
With 0.24 millimeter of the cylinder in aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content regulation machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric
On;Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method
122 DEG C are 30 grams/10 minutes with melt index, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and will be copolymerized acyl
Amine hot-melt adhesive powder dispenses, and adjusts duster according to 10-12 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 2.0mm thickness, starts roller blanket belt type
The one side for having cated warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will have and apply
The terylene non-woven fabric and the another side of PUR sponges of layer are combined with each other.
The raw material and warp knitting fabrics specification of warp knit automobile fabric:
GB1:75D/36F DTY 1-1/1-1/1-0/0-1//;
GB2:75D/36F DTY 1-0/0-1/1-1/1-1//;
GB3:75D/36F DTY 1-0/3-4//.
Embodiment three
The present embodiment is essentially identical with the structure and principle of embodiment one, and and therefore not to repeat here, and different place
It is:
In above-mentioned step A, described water repellent automobile fabric 2 is warp knit water repellent automobile fabric, by 156 centimetres of door and
Specification is to be placed on after 160 grams/m of warp knit water repellent automobile fabric has judged coat side on the reel-off stand of double-dot coating machine simultaneously
Cloth is put on, the speed of double-dot coating machine is set in 22 ms/min, and drying room temperature is warming up to 180-185 DEG C;From computer unrest point
180 holes/square centimeter, 0.18 millimeter of wall thickness and the cylinder in 0.22 millimeter of aperture of arrangement;From polyacrylate prime cement and press
Machine parameter is adjusted according to the solid content of 3.5-4.0 grams/m of polyacrylate of primary coat, by cylinder by polyacrylate bottom
Slurry is shifted and put and is coated in the coat side of warp knit water repellent automobile fabric;From copolyamide hot melt adhesive powder and copolyamide class heat
The particle diameter of melting powder is 80-170 microns, fusing point is 122 DEG C of optical method and melt index is 30 grams/10 minutes, by dusting groove
It is put into appropriate copolyamide hot melt adhesive powder and dispenses copolyamide hot melt adhesive powder, according to finished product dusting coating amount 12-
13 grams/m of amount regulation duster and pressure-vaccum powder equipment parameter, i.e. the cated warp knit water repellent automobile fabric of tool is made;
Described non-woven fabrics 3 is terylene non-woven fabric, by the terylene nonwoven that 154 centimetres of door and specification are 50 grams/m
Cloth is placed on the reel-off stand of double-dot coating machine after having judged coat side and puts on cloth, the speed of double-dot coating machine be set in 22 meters/
Minute, drying room temperature is warming up to 180-185 DEG C;From computer 150 holes/square centimeter that disorderly point arranges, 0.18 millimeter of wall thickness
With 0.24 millimeter of the cylinder in aperture;From polyacrylate prime cement and according to the polyacrylate of 3.5-4.0 grams/m of primary coat
Solid content regulation machine parameter, polyacrylate prime cement is shifted and put by cylinder being coated in the coat side of terylene non-woven fabric
On;Particle diameter from copolyamide hot melt adhesive powder and copolyamide hot melt adhesive powder is 80-170 microns, fusing point is optical method
122 DEG C are 30 grams/10 minutes with melt index, appropriate copolyamide hot melt adhesive powder will be put into dusting groove and will be copolymerized acyl
Amine hot-melt adhesive powder dispenses, and adjusts duster according to 11-13 grams/m of amount of finished product dusting coating amount and pressure-vaccum powder equipment is joined
Number, i.e. the cated terylene non-woven fabric of tool is made;
In above-mentioned step B, described sponge is the PUR sponges of 35 density and 3.0mm thickness, starts roller blanket belt type
The one side for having cated warp knit water repellent automobile fabric and PUR sponges is combined with each other by heat-pressing compound machine, then will have and apply
The terylene non-woven fabric and the another side of PUR sponges of layer are combined with each other.
The raw material and warp knitting fabrics specification of warp knit automobile fabric:
GB1:30D/24F FDY1-0/1-2/2-3/2-1//;
GB2:30D/24F FDY 2-3/2-1/1-0/1-2//;
GB3:75D/36F DTY 1-0/3-4//.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although sponge 1, water repellent automobile fabric 2, the second double-dot coating 31, non-woven fabrics 3, second pairs have more been used herein
The point grade term of coating 31, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more easily
Describe and explain the essence of the present invention;Being construed as any additional limitation is disagreed with spirit of the present invention
's.